Home / 13,146.55-19,714.96-3,783.40

Finding the Fourth Proportional to 13,146.55, 19,714.96 and 3,783.40

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Solution

The fourth proportional to 13,146.55, 19,714.96 and 3,783.40 is: 5,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.55 : 19,714.96 = 3,783.40 : x
  2. Step 2: Convert to fraction form
    13,146.55/19,714.96 = 3,783.40/x
  3. Step 3: Cross multiply
    13,146.55x = 19,714.96 × 3,783.40
  4. Step 4: Simplify right side
    13,146.55x = 74,589,628.03
  5. Step 5: Solve for x
    x = 74,589,628.03/13,146.55
  6. Step 6: Final answer
    x = 5,673.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.